[Statistic] Make countries clickable on own statistic maps.

[capoaira]

Discussed in https://github.com/2Abendsegler/GClh/discussions/2009

^{Originally posted by novw January 17, 2022} When in statistics -> map -> caches you've found, when hovering the map the country and the number of founds pops up. Why not make that clickable like the text links to the right of the map ?